Tool · Addition Estimator

What will your addition cost?

Pick the type, the size, and the finish tier. Numbers update live. Ottawa pricing, 2026.

1. Addition type

2. Size

Floor area being added. For second-storey, count the new floor.

3. Finish tier

What's in each tier?

Standard: builder-grade everything, vinyl windows, laminate floors.
Mid: upgraded fixtures, engineered hardwood, quartz, better windows.
High-end: custom millwork, designer fixtures, premium windows, solid surfaces.

4. Get a real proposal

Your estimated range